54 lines
862 B
Go
54 lines
862 B
Go
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package schema
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import "reflect"
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func indirectType(t reflect.Type) reflect.Type {
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if t.Kind() == reflect.Ptr {
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t = t.Elem()
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}
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return t
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}
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func fieldByIndex(v reflect.Value, index []int) (_ reflect.Value, ok bool) {
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if len(index) == 1 {
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return v.Field(index[0]), true
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}
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for i, idx := range index {
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if i > 0 {
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if v.Kind() == reflect.Ptr {
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if v.IsNil() {
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return v, false
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}
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v = v.Elem()
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}
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}
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v = v.Field(idx)
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}
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return v, true
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}
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func fieldByIndexAlloc(v reflect.Value, index []int) reflect.Value {
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if len(index) == 1 {
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return v.Field(index[0])
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}
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for i, idx := range index {
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if i > 0 {
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v = indirectNil(v)
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}
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v = v.Field(idx)
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}
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return v
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}
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func indirectNil(v reflect.Value) reflect.Value {
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if v.Kind() == reflect.Ptr {
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if v.IsNil() {
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v.Set(reflect.New(v.Type().Elem()))
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}
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v = v.Elem()
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}
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return v
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}
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